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All results from a given calculation for C3H4 (cyclopropene)

using model chemistry: B2PLYP/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2v 1A1
Energy calculated at B2PLYP/cc-pVDZ
 hartrees
Energy at 0K-116.487559
Energy at 298.15K-116.490756
HF Energy-116.353320
Nuclear repulsion energy63.394878
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at B2PLYP/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3322 3182 0.02 159.71 0.13 0.23
2 A1 3070 2940 62.24 145.92 0.14 0.25
3 A1 1717 1644 13.53 35.37 0.20 0.33
4 A1 1507 1443 2.79 15.65 0.30 0.46
5 A1 1170 1121 0.70 11.30 0.19 0.32
6 A1 921 882 3.77 8.15 0.65 0.79
7 A2 1011 968 0.00 11.40 0.75 0.86
8 A2 848 812 0.00 0.02 0.75 0.86
9 B1 3145 3012 48.91 101.05 0.75 0.86
10 B1 1101 1054 1.40 3.05 0.75 0.86
11 B1 595 570 63.83 1.23 0.75 0.86
12 B2 3277 3138 0.18 82.01 0.75 0.86
13 B2 1063 1018 30.92 0.04 0.75 0.86
14 B2 1029 985 26.16 0.02 0.75 0.86
15 B2 788 755 12.97 18.42 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12281.9 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 11762.4 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at B2PLYP/cc-pVDZ
ABC
0.98959 0.72414 0.45687

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.865
C2 0.000 0.653 -0.502
C3 0.000 -0.653 -0.502
H4 0.000 1.591 -1.048
H5 0.000 -1.591 -1.048
H6 0.921 0.000 1.466
H7 -0.921 0.000 1.466

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.51551.51552.48842.48841.09921.0992
C21.51551.30541.08542.30912.26892.2689
C31.51551.30542.30911.08542.26892.2689
H42.48841.08542.30913.18203.11433.1143
H52.48842.30911.08543.18203.11433.1143
H61.09922.26892.26893.11433.11431.8412
H71.09922.26892.26893.11433.11431.8412

picture of cyclopropene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 64.488 C1 C2 H4 145.689
C1 C3 C2 64.488 C1 C3 H5 145.689
C2 C1 C3 51.023 C2 C1 H6 119.548
C2 C1 H7 119.548 C2 C3 H5 149.823
C3 C1 H6 119.548 C3 C1 H7 119.548
C3 C2 H4 149.823 H6 C1 H7 113.754
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.001      
2 C -0.033      
3 C -0.033      
4 H 0.007      
5 H 0.007      
6 H 0.027      
7 H 0.027      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -0.501 0.501
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.385 0.000 0.000
y 0.000 -16.931 0.000
z 0.000 0.000 -18.595
Traceless
 xyz
x -1.622 0.000 0.000
y 0.000 2.059 0.000
z 0.000 0.000 -0.436
Polar
3z2-r2-0.873
x2-y2-2.454
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.947 0.000 0.000
y 0.000 4.860 0.000
z 0.000 0.000 4.941


<r2> (average value of r2) Å2
<r2> 37.319
(<r2>)1/2 6.109